1. Yes you made great moves
2. Yes Kipnis is a must have keeper. 20HR and 40SB potential this year. weakest position in baseball. think of it this way he is already between a Cano and Kinsler value in his 2nd year. I would target him late 2nd early 3rd round in a draft with all players.
3. Heyward I am not as sold on. The potential obviously is there, but hasn't lived up to his full potential yet. I think it is between Heyward and Bumgartner for your last keeper.
4. I think I stay put. You will pay too much for Braun and Cuth. The only keeper trade which is interesting to me is Stanton. With the injury you might be able to get him at a discount.